Lunch box



FIG. 1 is a top front perspective view of a lunch box showing my new design;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a side view thereof, the opposite side view being a mirror image thereof;

FIG. 5 is a back view thereof;

FIG. 6 is a front view thereof;

FIG. 7 is a bottom front perspective view thereof; and,

FIG. 8 is a top perspective view thereof, shown in opened condition. 

CLAIM The ornamental design for a lunch box, as shown and described. 